feat(notification): 添加异步通知服务并重构事件处理逻辑

- 新增 AppNotificationService 处理应用内事件通知
- 新增 SmsNotificationService 处理短信通知功能
- 配置 AsyncConfig 异步执行器支持事件通知处理
- 重构 CsEventPOServiceImpl 事件处理逻辑，分离通知功能
- 添加 @EnableAsync 注解启用异步处理
- 优化 CsDeviceUserPOServiceImpl 用户查询返回空对象
- 修复 WlUserServiceImpl 中的空指针检查逻辑

cs-device/cs-device-boot/src/main/java/com/njcn/csdevice/service/impl/CsDeviceUserPOServiceImpl.java

@@ -462,16 +462,16 @@ public class CsDeviceUserPOServiceImpl extends ServiceImpl<CsDeviceUserPOMapper,
 
     @Override
     public DevUserVO queryUserById(String devId) {
+        DevUserVO devUser = new DevUserVO();
         List<CsDeviceUserPO> list = this.lambdaQuery().eq(CsDeviceUserPO::getDeviceId, devId).eq(CsDeviceUserPO::getStatus, "1").list();
         if (CollectionUtils.isEmpty(list)) {
-            throw new BusinessException(AlgorithmResponseEnum.DATA_ARRAY_MISSING);
+            return devUser;
         }
         List<String> collect = list.stream().map(CsDeviceUserPO::getSubUserId).distinct().collect(Collectors.toList());
         List<User> data = userFeignClient.appuserByIdList(collect).getData();
         String primaryUserId = list.get(0).getPrimaryUserId();
         List<User> subUser = data.stream().filter(temp -> !Objects.equals(temp.getId(), primaryUserId)).collect(Collectors.toList());
         List<User> primaryUser = data.stream().filter(temp -> Objects.equals(temp.getId(), primaryUserId)).collect(Collectors.toList());
-        DevUserVO devUser = new DevUserVO();
         devUser.setDevId(devId);
         devUser.setSubUsers(subUser);
         devUser.setMasterUser(primaryUser.get(0));